My shirts always seem to billow around the waist and in the arms. So, yesterday I picked up a slim fit shirt that seems to fit much better. However, I have a question about the fit. The shirt is certainly much snugger, which is what I was going for. It doesn't billow nearly as much. However, if I cross my arms like I'm hugging myself, it definitely tightens in the lats and across the back. Is this normal or too tight? Thanks.